57KB,PICOZX motherboard with keyboard for ZX Spectrum original case or standalone - Share Project - PCBWay,Z80 CPU (ZX Spectrum 16 48k) - RetroSix Wiki,Connectorized SMA, Linear, Gain Block Amplifier, 0.3 MHz to 14 GHz, 50Ω | ZX60-14012L-S+ | Mini-Circuits,33KB